CVE-2018-1091
kernel: guest kernel crash during core dump on POWER9 host
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · September 13, 2017
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel where a crash can be triggered from unprivileged userspace during core dump on a POWER system with a certain configuration. This is due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path leading to a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 4.7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-391 · Unchecked Error Condition